input[type="checkbox"]{
    width:30px;
    height:30px;
    display: inline-block;
    text-align: center;
    vertical-align: middle; 
    line-height: 30px;
    position: relative;
    -webkit-appearance: none;
    outline: none;
    margin-right: 30px;
}
input[type="checkbox"]::before{
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    background: #fff;
    width: 100%;
    height: 100%;
    border: 1px solid #99f5ed;
    border-radius: 50%;
}
input[type="checkbox"]:checked::before{
    content: "\2714";
    background-color: #fff;
    position: absolute;
    top: 0;
    left: 0;
    width:100%;
    border: 1px solid #99f5ed;
    color:#02e599;
    font-size: 30px;
    font-weight: bold;
    border-radius: 50%;

}

input[type="text"]::placeholder {
    color: #c6d1d1;
}
.wrap {
    width: 550px;
    margin: 50px auto;
    cursor: pointer;
}

.title {
    text-align: center;
    font-size: 100px;
    color: rgba(175, 47, 47, 0.15);
}

.content {
    width: 100%;
    background-color: #ffffff;
    box-shadow: 0 2px 4px 0 rgba(0,0,0,0.2),
    0 25px 50px 0 rgba(0, 0, 0, 0.1) ;
}

/* 头部 */
.header {
    height: 65px;
    display: flex;
    align-items: center;
    box-shadow: inset 0 -2px 1px rgba(0,0,0,0.03)
}

.entry-input {
    border: none;
    outline: none;
    font-size: 24px;
    color: rgb(250, 76, 206);
    font-style: oblique;
}

/* 主体部分 */
.list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.item {
    height: 65px;
    border-bottom: 1px solid #ededed;
    display: flex;
    align-items: center;
    position: relative;
}

.item-text {
    font-size: 24px;
    color: #c6d1d1;
    flex: 1;
}

.item-completed {
    text-decoration: line-through;
}

.btn {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background-color: transparent;
    border: none;
    color: #333;
    font-weight: bold;
    font-size: 30px;
    outline: none;
    display: none;
}

.item:hover .btn{
    display: block;
}

.modify-input {
    display: none;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 490px;
    height: 80%;
    font-size: 24px;
    color: #c6d1d1;
    outline: none;
    border: 1px solid #ededed;
    border-radius: 5px;
}

.double {
    display: block;
}

/* 尾部 */
.footer {
    padding: 0 10px;
    height: 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #c6d1d1;
    font-size: 14px;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.2),
    0 8px 0 -3px #f6f6f6,
    0 9px 1px -3px rgba(0, 0, 0, 0.2),
    0 16px 0 -6px #f6f6f6,
    0 17px 2px -6px rgba(0, 0, 0, 0.2);

}

.group {
    display: flex;
}

.group > a{
    padding: 4px 8px;
    border: 1px solid transparent;
    color: #c6d1d1;
    text-decoration: none;
    border-radius: 2px;

}

.group > a:hover {
    border-color: #f1c1a1;
}

.group > a:focus {
    border-color: #ee7c30;
}

.clear-completed:hover {
    text-decoration: underline;
}